ARM: dts: rockchip: Add VMARC RK3288 SOM initial support

VMARC RK3288 SOM is a standard SMARC SOM design with
Rockchip RK3288 SoC, which is designed by Vamrs.

Specification:
- Rockchip RK3288
- PMIC: RK808
- SD slot, 16GiB eMMC
- 2xUSB-2.0, 1xUSB3.0
- USB-C for power supply
- Ethernet, PCIe
- HDMI, MIPI-DSI/CSI, eDP

Add initial support for VMARC RK3288 SOM, this would use
with associated carrier board.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

diff --git a/arch/arm/dts/rk3288-vmarc-som.dtsi b/arch/arm/dts/rk3288-vmarc-som.dtsi
new file mode 100644 (file)
index 0000000..1549ac4
--- /dev/null
+++ b/arch/arm/dts/rk3288-vmarc-som.dtsi
@@ -0,0 +1,298 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd
+ * Copyright (c) 2019 Vamrs Limited
+ * Copyright (c) 2019 Amarula Solutions(India)
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+       compatible = "vamrs,rk3288-vmarc-som", "rockchip,rk3288";
+
+       ext_gmac: external-gmac-clock {
+               compatible = "fixed-clock";
+               clock-frequency = <125000000>;
+               clock-output-names = "ext_gmac";
+               #clock-cells = <0>;
+       };
+
+       vccio_flash: vccio-flash-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vccio_flash";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               startup-delay-us = <150>;
+               vin-supply = <&vcc_io>;
+       };
+
+       vcc_sys: vsys-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_sys";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-always-on;
+               regulator-boot-on;
+       };
+};
+
+&emmc {
+       bus-width = <8>;
+       cap-mmc-highspeed;
+       disable-wp;
+       non-removable;
+       pinctrl-names = "default";
+       pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_pwr &emmc_bus8>;
+       status = "okay";
+};
+
+&gmac {
+       assigned-clocks = <&cru SCLK_MAC>;
+       assigned-clock-parents = <&ext_gmac>;
+       clock_in_out = "input";
+       phy-mode = "rgmii";
+       phy-supply = <&vcc_io>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&rgmii_pins>;
+       snps,reset-gpio = <&gpio4 RK_PA7 GPIO_ACTIVE_HIGH>;
+       snps,reset-active-low;
+       snps,reset-delays-us = <0 10000 50000>;
+       tx_delay = <0x30>;
+       rx_delay = <0x10>;
+       max-speed = <1000>;
+};
+
+&i2c0 {
+       clock-frequency = <400000>;
+       status = "okay";
+
+       rk808: pmic@1b {
+               compatible = "rockchip,rk808";
+               reg = <0x1b>;
+               interrupt-parent = <&gpio0>;
+               interrupts = <RK_PA4 IRQ_TYPE_LEVEL_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pmic_int &global_pwroff>;
+               rockchip,system-power-controller;
+               wakeup-source;
+               #clock-cells = <1>;
+               clock-output-names = "rk808-clkout1", "rk808-clkout2";
+
+               vcc1-supply = <&vcc_sys>;
+               vcc2-supply = <&vcc_sys>;
+               vcc3-supply = <&vcc_sys>;
+               vcc4-supply = <&vcc_sys>;
+               vcc6-supply = <&vcc_sys>;
+               vcc7-supply = <&vcc_sys>;
+               vcc8-supply = <&vcc_io>;
+               vcc9-supply = <&vcc_io>;
+               vcc10-supply = <&vcc_sys>;
+               vcc11-supply = <&vcc_sys>;
+               vcc12-supply = <&vcc_io>;
+               vddio-supply = <&vcc_io>;
+
+               regulators {
+                       vdd_cpu: DCDC_REG1 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <750000>;
+                               regulator-max-microvolt = <1400000>;
+                               regulator-name = "vdd_arm";
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vdd_gpu: DCDC_REG2 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <850000>;
+                               regulator-max-microvolt = <1250000>;
+                               regulator-name = "vdd_gpu";
+                               regulator-ramp-delay = <6000>;
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcc_ddr: DCDC_REG3 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-name = "vcc_ddr";
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                               };
+                       };
+
+                       vcc_io: DCDC_REG4 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcc_io";
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <3300000>;
+                               };
+                       };
+
+                       vcc_tp: LDO_REG1 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcc_tp";
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcca_codec: LDO_REG2 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcca_codec";
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <3300000>;
+                               };
+                       };
+
+                       vdd_10: LDO_REG3 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1000000>;
+                               regulator-max-microvolt = <1000000>;
+                               regulator-name = "vdd_10";
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <1000000>;
+                               };
+                       };
+
+                       vcc_wl: LDO_REG4 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-name = "vcc_wl";
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                               };
+                       };
+
+                       vccio_sd: LDO_REG5 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vccio_sd";
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <3300000>;
+                               };
+                       };
+
+                       vdd10_lcd: LDO_REG6 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1000000>;
+                               regulator-max-microvolt = <1000000>;
+                               regulator-name = "vdd10_lcd";
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcc_18: LDO_REG7 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-name = "vcc_18";
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <1800000>;
+                               };
+                       };
+
+                       vcc18_lcd: LDO_REG8 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-name = "vcc18_lcd";
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcc_sd: SWITCH_REG1 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-name = "vcc_sd";
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcc_lcd: SWITCH_REG2 {
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-name = "vcc_lcd";
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+               };
+       };
+};
+
+&io_domains {
+       bb-supply = <&vcc_io>;
+       flash0-supply = <&vccio_flash>;
+       gpio1830-supply = <&vcc_18>;
+       gpio30-supply = <&vcc_io>;
+       sdcard-supply = <&vccio_sd>;
+       status = "okay";
+};
+
+&pinctrl {
+       pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
+               drive-strength = <8>;
+       };
+
+       pcfg_pull_up_drv_8ma: pcfg-pull-up-drv-8ma {
+               bias-pull-up;
+               drive-strength = <8>;
+       };
+
+       pmic {
+               pmic_int: pmic-int {
+                       rockchip,pins = <0 RK_PA4 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+
+       sdmmc {
+               sdmmc_bus4: sdmmc-bus4 {
+                       rockchip,pins =
+                               <6 RK_PC0 1 &pcfg_pull_up_drv_8ma>,
+                               <6 RK_PC1 1 &pcfg_pull_up_drv_8ma>,
+                               <6 RK_PC2 1 &pcfg_pull_up_drv_8ma>,
+                               <6 RK_PC3 1 &pcfg_pull_up_drv_8ma>;
+               };
+
+               sdmmc_clk: sdmmc-clk {
+                       rockchip,pins =
+                               <6 RK_PC4 1 &pcfg_pull_none_drv_8ma>;
+               };
+
+               sdmmc_cmd: sdmmc-cmd {
+                       rockchip,pins =
+                               <6 RK_PC5 1 &pcfg_pull_up_drv_8ma>;
+               };
+       };
+};